Type Alias GDALProgressFunc 

pub type GDALProgressFunc = Option<unsafe extern "C" fn(dfComplete: f64, pszMessage: *const c_char, pProgressArg: *mut c_void) -> c_int>;

Aliased Type

pub enum GDALProgressFunc {
    None,
    Some(unsafe extern "C" fn(f64, *const i8, *mut c_void) -> i32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(f64, *const i8, *mut c_void) -> i32)

Some value of type T.